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When a centrifugal pump runs at 1500 rpm, it discharges 0.05 m3 / h of water....

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Mechanical Engineering

When a centrifugal pump runs at 1500 rpm, it discharges 0.05 m3 / hof water. The entrance and exit radii of the rotor are given as0.05 m and 0.15 m respectively, the wing thickness at the entranceis 0.03 m, and the wing thickness at the exit is 0.01 m. The inletand outlet vane angles are 60o and 45o respectively, and the pumpmechanical efficiency is 0.85. In this case; a) What should be thetheoretical head of the pump? b) What is the angle of flow betweenthe absolute speed and the peripheral speed at the inlet? c) Whatpower should be given to the shaft of the pump? (ρwater = 1000 kg /m3)

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